No problem, we've got 2675 and 7638 to multiply
2675 × 7638 = 7638 × (2675)
+ 7638 × 5 that results in 38190
+ 7638 × 70 that equals 534660
+ 7638 × 600 which equals 4582800
+ 7638 × 2000 which equals 15276000

= 20431650
